Surgical complications associated with fasciectomy for dupuytren's disease: a 20-year review of the English literature.

OBJECTIVE
Excisional surgery is the mainstay of treatment of Dupuytren's disease. Although outcomes are generally good, complications are common. The objective of this study was to evaluate intraoperative and postoperative complications associated with fasciectomy for Dupuytren's disease.


METHODS
A literature search was conducted to identify published, original research that reported surgical complications associated with fasciectomy from 1988 to 2008. Search results were manually evaluated for relevance. Complication rates according to types of disease (primary or recurrent disease) and according to time (intraoperative vs postoperative) and type were collated.


RESULTS
A total of 143 articles were identified; 41 met inclusion criteria, and of these, 28 reported overall surgical complication rates ranging from 3.6% to 39.1%. Major complications occurred in 15.7%, including digital nerve injury 3.4%, digital artery injury 2%, infection 2.4%, hematoma 2.1%, and complex regional pain syndrome 5.5%. Other common, more minor injuries included flare reaction in 9.9%, wound healing complications in 22.9%, and a range of other complications. In the few (n = 3) studies in which primary and recurrent diseases were directly compared, digital nerve injuries and digital artery injuries were approximately 10 times more common in patients with recurrent disease (20%) than those with primary disease (approximately 2%), though the numbers are too small for statistical significance.


CONCLUSIONS
A review of published reports by surgeons shows that surgical fasciectomy for Dupuytren's disease has a high number of complications. Surgeons should be mindful of the potential for intraoperative and postoperative complications and counsel their patients accordingly.

Dupuytren's disease was originally noted by Plater in 1614 1 and carries the eponym of Baron Guillaume Dupuytren, who first lectured on the disease in 1831. 2 Although Cline in 1777 and Cooper in 1822 had described the fascial contracture and its treatment by fasciotomy, they were not mentioned in Dupuytren's discussions. 1 Dupuytren's disease is a genetic disorder of abnormal collagen production and deposition in the hand that is commonly characterized by metacarpophalangeal (MP) and proximal interphalangeal (PIP) ePlasty VOLUME 10 disease by surgical techniques. These corrective surgical procedures improve hand function for most patients; however, intraoperative and postoperative complications are common. Recurrent disease is possible after all types of treatments, including fasciectomies.
Surgeons performing fasciectomies need to discuss potential complications and recurrence with their patients and set realistic expectations for efficacy and safety. Unfortunately, no concise source of estimated surgical complication rates exists. The purpose of this review is to provide a single resource of intraoperative and postoperative complications associated with fasciectomy for Dupuytren's disease.

Identification of studies
Analysis of surgical complications was limited to those associated with fasciectomy and aponeuroectomy. To identify published, original research that reported surgical complications associated with surgery for Dupuytren October 31, 1988, to October 31, 2008.

Study selection
Search results were manually evaluated for relevance. Studies that did not report complication rates associated with fasciectomy or aponeurectomy were not included in the analysis. Studies that reported complication rates associated with fasciotomy, aponeurotomy, amputation, or postsurgical application of the S-Quattro external fixation device were excluded. Case studies were also excluded.

Data analysis
Overall complication rates, complication rates according to types of disease (primary or recurrent disease), and complication rates according to time (intraoperative vs postoperative) and type were collated. Studies that did not specifically state whether patients had primary disease or recurrent disease were assumed to have had primary disease.
Averages and ranges were calculated for each complication described. The manner in which complications were reported varied from study to study (ie, by ray/finger; by hand; by patient); conversion of all surgical complication rates to a common denominator was not possible. Average rates were calculated and ranges were reported for each surgical complication across studies; the sum of all numerators was divided by the sum of all denominators and multiplied by 100.

Complications in patients with recurrent disease
Only 2 studies examined patients with recurrent disease exclusively. One study did not report intraoperative complications; the other evaluated intraoperative complications and reported no digital artery injuries (Table 3). 72,73 Both studies reported postoperative complications: hyperesthesia (20.0%), local cold intolerance (20.0%), hypoesthesia (15.8%), and necrosis (11.1%). No cases of bleeding, infection, graft failure, or reflex sympathetic dystrophy were observed.

Comparison of complications in patients with primary or recurrent disease
Three studies reported surgical complication rates separately for patients with primary disease and recurrent disease ( Table 5 and Fig 1). 27,30,64 Only one study reported overall complication rates, which were slightly higher in patients with primary disease (30.8%) than in those with recurrent disease (25.0%). 64 Digital artery injury and digital nerve injury were more commonly observed in patients with recurrent disease than those with primary disease. The incidence of digital artery injury and digital nerve injury was 1.7% (3/174) and 3.1% (7/224), respectively, in patients with primary disease and 25.7% (9/35) and 17.0% (10/59), respectively, in patients with recurrent disease, indicating a approximately 10-fold DENKLER difference (∼2% vs ∼20%) (Fig 1). 27,30,64 However, the number of patients is too small for statistical significance.

DISCUSSION
Data from this analysis clearly demonstrate that complications associated with fasciectomy for the treatment of patients with Dupuytren's disease are varied and relatively common. Data from studies that evaluated patients with primary disease showed that wound-healing complications and pain were most common. Conversely, patients with recurrent disease were more likely to experience varied types of sensory abnormalities (eg, hyperesthesia, cold intolerance, hypoesthesia) and necrosis. Data from the few studies that directly compared patients with primary and recurrent diseases showed that digital nerve injuries and digital artery injuries were much more common in patients with recurrent disease (typically ∼20%) than those with primary disease (typically ∼2%), although larger numbers of patients are needed for a valid statistical comparison. Pain was less common in patients with recurrent disease, perhaps because those who previously underwent fasciectomy and developed a pain-related complication were unlikely to undergo surgery a second time. Surgical complication rates in the present analysis were physician reported. A large patient survey study (N = 1177) conducted by the British Society for Surgery of the Hand provides insight into patient-reported complications after Dupuytren's surgery. 75 Patients with Dupuytren's disease were identified by hand surgeons throughout the United Kingdom and were invited to complete a questionnaire about surgical outcomes and complications. Patients' self-reported complications were 35.8% for numbness and 19.8% for infection. 75 These values are much higher than the physician-reported complications rates provided in the current analysis. 75 As with all surgeries, complication rates generally correlate with invasiveness of the procedure. Patients with severe disease often have greater tissue involvement and require more complex measures to correct the finger deformity. Consequently, patients with severe disease at the time of surgery tend to experience more complications postfasciectomy. 46,75 A retrospective analysis of 253 patients with Dupuytren's disease who underwent fasciectomy showed that complication rates increased with the severity of disease, particularly when PIP joint contracture was more than 60 • . 46 Dias and Braybrooke 75 made a similar observation, showing a clear relationship between the incidence of self-reported complications and the severity of the initial deformity, with patients who had severe disease at the time of surgery reporting more surgical complications. Loos et al 4 in a large study of almost 3000 patients noted a statistically significant correlation between worsening stage of the disease and postoperative complications.
Several limitations of the present analysis must be taken into consideration when interpreting the data. First, the manner in which complication rates were reported varied from study to study and included complications per ray or finger, per patient, and per hand. Conversion of complication rates to one common denominator was not possible, so the overall rates and ranges represent blended data. Given the large number of studies (n = 41) included in the analysis, overall interpretation should not be affected, though this limitation may explain why the ranges associated with some complications are relatively broad. Second, several factors, such as patient diathesis, baseline disease severity, the type of joint affected (ie, MP or PIP), and multiple digit involvement, that can impact the frequency of surgical complications were not analyzed separately. Complication rates in the present analysis are therefore based on a heterogeneous patient population and cannot be directly compared with a specific patient subset. ePlasty VOLUME 10 In the absence of an approved pharmacotherapy, surgery provides the best opportunity for long-term functional improvement for patients with Dupuytren's disease. Although complete restoration of hand function is unlikely, most patients will experience significant gain in function. However, several drawbacks to surgery exist. First, surgery does not cure Dupuytren's disease and recurrences rates are high, ranging from 26% to 80%. 37 Second, surgery in patients with recurrent disease is usually more challenging because scarring and anatomic distortion from prior procedure(s) increases the likelihood of neurovascular complications. Third, rehabilitation after open surgery may be prolonged. Finally, multiple, repetitive surgical procedures have their limitations and not all patients are good candidates for surgery.

CONCLUSIONS
This is the first report to extensively collect and analyze complications associated with surgery for Dupuytren's disease in clinical practice. Data from this study indicate that complications of surgery not only occur frequently but are also varied. Therefore, surgeons who perform fasciectomies for Dupuytren's disease should be mindful of the potential for intraoperative and postoperative complications and should counsel their patients accordingly. Furthermore, the severity of the disease and surgical history of the patient should be considered when anticipating complications. Patients undergoing fasciectomy for recurrent disease are more likely to experience either digital nerve injury or digital artery injury than patients with primary disease.
In conclusion, results of this study underscore the importance of treating Dupuytren's as an incurable genetic disease understanding that surgical excision, fasciectomy, has a high rate of major and minor complications. Surgeons must understand that while fasciectomy for Dupuytren's does offer a chance at long-term "straight" fingers, there is a high cost in terms of numbers of complications that are borne by the patient.